sauna100 is a sauna-only facility on the second floor of Minami-Bandai Terrace, a four-minute walk from Niigata Station's Bandai exit. A large sauna room looks out on a small garden, and a smaller room is arranged around the stove like an irori hearth. The 80 cm deep cold bath is filled with binchotan charcoal and kept free-flowing. Normally men only; women can come on mixed days (the 5th, 10th, 15th, 20th and 25th, swimwear required). Visitor entry ¥2,500, no time limit; open daily 10:00–23:00.